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[FEAT MERGE] Functional_index

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This commit is contained in:
obdev
2023-04-27 11:11:23 +00:00
committed by ob-robot
parent a52d8673b2
commit c5756c1799
370 changed files with 1728 additions and 821 deletions
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29
src/sql/engine/expr/ob_expr_cast.cpp
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@ -38,7 +38,7 @@ ObExprCast::ObExprCast(ObIAllocator &alloc)
: ObFuncExprOperator::ObFuncExprOperator(alloc, T_FUN_SYS_CAST,
N_CAST,
2,
NOT_ROW_DIMENSION)
NOT_VALID_FOR_GENERATED_COL, NOT_ROW_DIMENSION)
{
extra_serialize_ = 0;
disable_operand_auto_cast();
@ -806,6 +806,33 @@ int ObExprCast::do_implicit_cast(ObExprCtx &expr_ctx,
return ret;
}
int ObExprCast::is_valid_for_generated_column(const ObRawExpr*expr, const common::ObIArray<ObRawExpr *> &exprs, bool &is_valid) const {
int ret = OB_SUCCESS;
if (exprs.count() != 2) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpected param num", K(ret), K(exprs.count()));
} else if (OB_ISNULL(exprs.at(0)) || OB_ISNULL(exprs.at(1)) || OB_ISNULL(expr)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("invalid param", K(ret), K(exprs.at(0)), K(exprs.at(1)));
} else {
ObObjType src = exprs.at(0)->get_result_type().get_type();
ObObjType dst = expr->get_result_type().get_type();
is_valid = true;
if (is_oracle_mode()) {
if ((ob_is_oracle_temporal_type(src) && ob_is_string_type(dst))
|| (ob_is_oracle_temporal_type(dst) && ob_is_string_type(src))) {
is_valid = false;
} else if ((ob_is_timestamp_tz(dst) || ob_is_timestamp_ltz(dst))
&& (ob_is_timestamp_nano(src) || ob_is_datetime(src))) {
is_valid = false;
}
} else if (ObTimeType == src && ObTimeType != dst && ob_is_temporal_type(dst)) {
is_valid = false;
}
}
return ret;
}
OB_DEF_SERIALIZE(ObExprCast)
{
int ret = OB_SUCCESS;